An item reported that there were underground naval warehouses with as dimensions 20 x 82 (or 32?) metres at Gara Gebetze, Bulgaria since 1945 along the Varna-Sofia railroad line on a distance of around 50 kilometres from Varna and 1,5 kilometres east of the railroad station. The warehouses were used to store Model 1930 Balgaska naval mines and 2cm and 3,7cm German shells.
Source
The report was published on www.archive.org, document number CIA-RDP82-00457R009100360009-7
Source
The report was published on www.archive.org, document number CIA-RDP82-00457R009100360009-7